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The fuel bowls on these engines are extremely efficient at causing condensation and fuel breakdown. I would chalk it up to a combination of airspace, an aluminum bowl and it's inherent rapid heat transfer characteristics, and I wouldn't be surprised if some dissimilar metal voodoo had something to do with my bad fuel. If memory serves, there are at least three different metal / alloy types within an inch of the bowls - the aluminum bowl, brass jets, & steel springs and parts, and maybe even some stainless in the bowl screws? Just a theory...

Due to my schedule last Summer riding herd on Gus Boy, I had the bike parked for two months. It wouldn't start right, and so I drained the bowls. The fuel was visibly off color, had a wrong odor, and a few drops of water & algae were swimming around in there too. The source fuel was no more than 3 months old in the tank.

Not that you asked, but, if a length of tubing is not at hand, a cut down plastic soda bottle can be helpful in draining the bowls. Pour the nasty fuel into a whole / uncut capped bottle, and it's good to go to the waste oil tank. Gravel driveway dandelions like bad fuel too.



It sounds like you might have gotten "old gas"to begin if it only lasted 3 months. Fuel should stay very good.......... over like...one michigan winter.if fresh when purchased the previous fall. but the life of gas falls off considerable faster after 8,9, months. if its a shade of orange, or smells like "varnish"at all, it should be disposed of. dandelions etc HTH

bob s